Rolls-Royce Silver Shadow - Priming and filling the system

Rolls-Royce Silver Shadow & Bentley T Series
Workshop Manual
Chapter
#
2.
Start the engine and run until normal operating
temperature is reached
(170°F., 77°C.) then stop the
engine.
3.
Remove the filler cap and check the fluid level
on the dipstick. Add fluid to raise the level to the
'FULL' mark if necessary. Do not overfill. Fit the
filler cap.
Priming and filling the steering system
Introduction
The Saginaw pump has a tendency to froth the steering
fluid when air is present in the system. The following
procedure is intended to reduce this frothing to a
minimum.
If frothing of the fluid does occur, the pump will
cavitate and emit a harsh buzz. This is quite usual
K158
and should cease when all the air is expelled from the
system. When cavitation is audible, the pump must
FIG. N19 METHOD OF FITTING THE END CAP
not be run at high speed otherwise the pump internal
AND RETAINING RING
components may be damaged.
While air remains in the system, the fluid will have
During the filling
the pump not a light tan coloured appearance and correct steering
be required to deliver full pressure for more than 5
action will not be obtained.
- ~
seconds or damage to the pump may result.
Use only the approved 'steering fluids'; these are
6. When satisfied that the fluid is no longer aerated,
to be found on the Lubrication Chart of Chapter D
return the steering to the centre position and run the
of this Workshop Manual.
engine for two or three minutes, then stop the engine.
Procedure
1. Turn the steering wheel to the full right-hand
lock position on right-hand drive cars or full left-hand
lock position on left-hand drive cars.
2. Remove the pump filler cap. Add sufficient
clean steering fluid to raise the fluid level in the pump
reservoir to the 'ADD' mark on the dipstick.
3. Start the engine and allow it to run at normal
fast-idle. Add more steering fluid to the reservoir to
maintain the level at the 'ADD' mark on the dipstick.
Do not allow the level of fluid to fall below the
internal pump housing otherwise
air will be pumped
into the system and the procedure will become
excessively prolonged.
4.
Bleed air from the system by turning the steering
FIG. N20 PUMP MOUNTING POINTS AND BELT
wheel slowly from side to side, but do not abut the full
TENSIONING ARRANGEMENT
lock stops, as the increased pressure will cause severe
, Pump rear mounting~pivot bracket
frothing of the aerated fluid.
2 Pump front mounting/pivot bracket
5. Maintain the fluid level at the 'ADD' mark.
Arrow indicates belt tension checking point